Multicell-battery-box mold



"21 1927. June I J. K. ROBINSON, JR

MULTICELL BATTERY BOX MOLD 2 Sheets-Sheet 1 Original Filed Jan.l6, 1925Inventor cf, /f, Ffozzzsvwflk .I I III: Il

I ll lllllr- June 21, 1927.

. 1,633,036 J. K. ROBINSON; JR

MULTICELL BATTERY BOX MOLD Original iied Jan- 1926 2 Sheets-Sheet 2Inventor fl. fiazirsoiv, e71;

Patented June 21, 1927.

UNITED STATES JAMES R. ROBINSON, .13., F ALTOOFTA, PENNSYLVANIA.

EUL'IIGELL-BA'ITERY-BOZ ROI-D.

Original application Med January 10, 1926, Serial No. 81,768. Divided18, 1926. Serial No. 142,835.

. This invention relates to an improved mold or die structure for makinga new type of multi-cell glass battery box of the type used as aportable storage battery for automobiles and the like.

Before discussing the features and advantages, attention is firstdirected to the fact that the present application is a division of anapplication covering the battery box per se, and identified by SerialNo. 81,763, filed on January 16, 1926.

For clearness, both the battery box and the mold are described in detailin this case, in order that the advantages and features of the mold willbe more.readily appreciated. However, noclaims are entered herein forthe battery box.

Briefly, the improved mold comprises a special female section ofbox-like formation,

and a com lemental male member made up of a specia carrying head, asupport therefor and assembling and retaining means for the core blocks,or members.

An outstanding feature of construction is the female part which has anopening in its bottom through which an ejector operates for removing thefinished products, this part being formed with intersecting rib forminggrooves on its interior and belng composed of readily separablesections.

An equally important feature of the invention is the male membercomprising a special head, means for connecting it to an operatingmember, and an arrangement of air cooling pi s associated with saidhead..

A further eature of construction is the provision of sup orting bolts ondownturned end portions 0 the head for maintaining the core blocks inassembled relation.

A further feature of construction .is in the use of core members ofduplicate desigp, facilitating manufacture an having t e added advantageof interchangeability.

Other objects and advantages of the invention will become a parent fromthe fol lowin description and drawings.

In t e accompanying drawings forming a part of this application, and inwhich like numerals are employed to designate like a parts throughoutthesame:

Figure 1 is a view showing vthe male and female dies of the moldconstruction in united relation, the female die being shown in crosssection, while the male die is disclosed-in side elevation.

and this application med October Figure 2 is an end elevation of themale die member.

Figure 3 is a longitudinal section taken substantially upon the line 3-3of Figure 1, and looking downwardly in the direction of the arrows formore clearly disclosing the male die uriit assembly.

Figure 4 is a top plan view of the male die, the carrying bag thereforbeing disclosed in cross section.

Figure 5 is a top plan view of the female die unit.

. Figure 6 is a similar view of the battery box molded from glassthnough medium of the present mold construction.

Figure 7 is a view partly in' side elevation and partly in cross sectionof the battery box, and

Figure 8 is a vertical transverse section of the same.

First having reference to Figures 1 to 5,

inclusive wherein is disclosed the batterybox molding unit comprisinggenerally a female unit 5, and a male unit 6. The female -un1t' 5 ofsuitable metal is of rectangular box-like configuration formed from a apair of half sections a and b of. tlie shape as clearly shown in Figure5, and the sections being interconnected in any desirable manner.

Within the center of the bottom wall of the assembled female unit is arelatively square opening 7 into which extends the j head 8 of a batterybox ejecting die plunger 9 operated by compressed air or any othersuitable medium for projection upwardlythrough the die forobvious'partially ejecting the molded batte box from the die memberafter the mo ding operation has been completed, and the male member re-'moved. I

The interior of the female'unit is formed upon its bottom wall withlongitudinally and transversely spaced channels 10 and 11 respectively,the inner face of the head 8 of the die plunger being formed withcomplementary channels as clearly. shown in Figures -1 and 5.

Communicating with the cross channels in the bottom wall of this didunit are spaced vertical channels 12 upon the inner surfaces of the sideand end walls of the"female die 'unit, the upper edges'of the end wallsof which are formed with outwardly extending tend above the ends of saidwalls for providing rabbets 1414.

The male die unit 6 constitutes the rovision of a rectangular shapedhead -p ate 15, the opposite ends of which are provided with pendentflanges 1616, Figure 1, be-

tween which the cell forming members .17

from the flanges 16-16 of the head plate the cell forming members.

15 through the medium of spacing strips 18, disposed at the extreme u,per ends of aid spacing members and the cell forming members are formedwith registering openings that provide longitudinally extending boresfor the reception of relatively elongated headed bolts 19 that areadapted to receive at their unheaded but threaded ends, locking nuts 20.

The flanges 1616 upon opposite ends of the head plate15 are suitablyslotted for permitting of the proper positioning of the bolts 19 andnuts 20. The strips presented by the slotting of the flanges are securedto the end spacing members by set screws 21 as more clearly disclosed inthe longitudinal sectional view, Figure 3.

The head plate 15 is centrally attached to a plunger rod 22 that may be,and preferably is, machine actuated in order that the male die may bepositioned within and removed from the female die 5.

The length of the cell forming members 17 are such that the lower endsthereof will be in spaced relation from the bottom wall 7 of the femaleunit 5 when the male unit is disposed entirely within said female unitfor providing the bottom wall of the battery box which according to thepresent in-- vention is molded of glass. Furthermore, the sides of thesecell forming members 17 are beveled, as clearly disclosed in Figure 1,for providing tapered end walls in the resultant box as well as taperedpartition and side walls for the purpose of adding strength to saidwalls and for the added purpose of permitting the ready withdrawal ofthe male unit from the female unit after the box forming material hasbeen properly hardened.

The lower edges of the cell forming members 17 are formed with spacedtransversely extending channels 23, while each cell forming member isrovided throu hout the major portion 0 its length with two or morecircular air chambers 24 that 0 en at the upper ends of the members aninto which a charge of air is to be projected for cooling the same andexpediting the harden ing of the box forming material.

Projecting through the head plate 15 of the male die unit are pipesections 25, the lower ends of which terminate in spaced alinement withthe air-chambers 24 of the cell forming members 17 i of said male dieunit, while the upper ends thereof are in intercommunication throughreason of a pipe line 26 that has communication in an obvious mannerwith a source of air supply.

It will thus be seen that through the employment of a mold constructionas previously described, a one piece glass battery box 27, Figures 6, 7and 8, will be constructed, and will include a plurality of oblong cells28, the-partition walls 29 of which will be tapered as will also the endwalls 30 of said box.

Furthermore, the entire exterior surface of the box will be providedwith reinforcmg ribs 31 together with the ribs 32 at the bottom of eachcell 28. Through reason of the rabbet 14-44 in the female dieunit 5carrying flanges 33-33 will be present at opposite ends of the box atthe upper edge thereof, all of which figures serve to pro vide a highlyefficient and strong multi-cell tion. It is believed that by carefullycon sidering the description in connection with the drawings, a clearunderstanding of the invention will be had. Consequently a more lengthydescription is thoughtunnecessary.

It IS desired that certain modifications in the II. )ld unit may beallowed inorder that slight departures may be had from the articularconstruction of formation of attery box constructed in accordance withthepresent invention.

Having thus described my invention, what I claim as new is 1. A mold forforming a battery box of the type specified, comprising a female unit ofbox-like configuration, said unit being made up of dup icatehalfsections, being provided at the center of its bottom with an opening forpassage of an ejector, being maintaining said cores in spaced relation,means fastening the end spacin members to said downturned plate ends, b0ts extending through said spacing members and through said cores, and anassembly of piping including dependin branches extending down throughsaiddiead late and terminating in alinement with sai bores.

2. In a mold of the class described, a female unit of box-likeconfiguration, and a male unit adapted for insertion into said femaleunit, said male unit comprising a head plate having downturned endportions, a plurality of downwardly tapered core members supported inspaced relation between the downturned end of said plate, said coremembers having vertical bores opening through their tops, and anassembly of piping connected to said head plate and includin dependingbranches extending down throng said head plate and terminating in spacedalignment with said bores.

3. A mold for forming a battery box of the type specified and comprisinga female unit adapted for insertion into said female unit, said maleunit comprising a head plate having downturned end ortions disposed torest upon the upper en sof said walls of said female unit, thedownturned ends being formed with longitudinall spaced notches, apluralit of downwar ly tapered core members, ocated beneath the b'ghtportion of the'plate and between the ownturned ends, spacing elementsarran ed between said cores and also between the downturned portions ofsaid plates for maintaining said cores in spaced relation, meansfastening the end spacing members to said dow'nturned plate-ends,connecting supporting bolts extending through the spacing members, coremembers, and notches in the downturned plate ends, and supporting andoperating means connected to the central portion of said plate.

Intestimony whereof I afiix my signature.

JAMES K. ROBINSON, JR.

